Stop setting -DNS_BLOCK_ASSERTIONS=1 for :release (#186)

As of Bazel 3.5.0, this is already set for the :opt profile on all Apple
platforms (which is what :release uses):

bazelbuild/bazel@174ed30

Author: jparise

IntegrationTests/GoldMaster/Adjust.podspec.json.goldmaster

@@ -157,8 +157,7 @@ objc_library(
         "-DPOD_CONFIGURATION_DEBUG=1"
       ],
       ":release": [
-        "-DPOD_CONFIGURATION_RELEASE=1",
-        "-DNS_BLOCK_ASSERTIONS=1"
+        "-DPOD_CONFIGURATION_RELEASE=1"
       ]
     }
   ) + [
@@ -278,8 +277,7 @@ objc_library(
         "-DPOD_CONFIGURATION_DEBUG=1"
       ],
       ":release": [
-        "-DPOD_CONFIGURATION_RELEASE=1",
-        "-DNS_BLOCK_ASSERTIONS=1"
+        "-DPOD_CONFIGURATION_RELEASE=1"
       ]
     }
   ) + [
@@ -1536,8 +1534,7 @@ objc_library(
         "-DPOD_CONFIGURATION_DEBUG=1"
       ],
       ":release": [
-        "-DPOD_CONFIGURATION_RELEASE=1",
-        "-DNS_BLOCK_ASSERTIONS=1"
+        "-DPOD_CONFIGURATION_RELEASE=1"
       ]
     }
   ) + [
@@ -2948,8 +2945,7 @@ objc_library(
         "-DPOD_CONFIGURATION_DEBUG=1"
       ],
       ":release": [
-        "-DPOD_CONFIGURATION_RELEASE=1",
-        "-DNS_BLOCK_ASSERTIONS=1"
+        "-DPOD_CONFIGURATION_RELEASE=1"
       ]
     }
   ) + [